Psychiatrists use the term "Personality Disorder" to describe problems involving deeply ingrained behavioural patterns.  However, each individual is unique and personality is so complex that slotting people into neat psychiatric categories is almost impossible.  Personality disorders differ in the degree to which they disrupt the person's life (or the lives of others) and the extent to which they can be successfully treated.  Often a person suffering from a personality disorder suffers additionally from an emotional problem such as depression or phobia.  Counselling, group therapy and cognitive therapy can all be helpful forms of treatment.  For some people spending some time in a therapeutic community has enabled them to make the necessary changes.